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No. 342,488. Patented May 25, 1886.

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W afar/ 8am UNITED STATES:

K PATENT OFFICE.

ARTHUR M. WELLINGTON, on NEW YORK, N. Y.

ANTI-FRICTION JOURNAL-BOX BEARING.

SPECIFICATION forming part of Letters Patent 110,342,488, dated May 25,1886.

Application filed February 8, 1886. Serial No. 191,138.

To all whom it may concern.-

Be it known that I, ARTHUR M.WELLING- TON, of'the city, county, andState of New York, have invented a new and useful Improvemeut in AntiFriction Journal Box Bearings, of which the following is a full and truedescription, reference being had to the drawings hereunto attached.

My invention relates to that class of journal-bearings which rely uponthe aid of movable rollers surrounding the aXle, and more directly tothose which use such rollers wholly disconnected from each other. Thedevice is more especially intended for the journals of wheeled vehicles,but is equally applicable to any other journals in which all or thegreater portion of the load is concentrated upon one side of thebearing.

The novelty claimed lies in the device by which the rollers are enabledto take such course as they may independently of each other whilesustaining the load, but are brought back into their proper place whenthey have passed from under the load, and hence oppose no resistance tomotion in any direction.

In the drawings like letters denote like parts, in which Figure l is atransverse section of the box through the center of the axle; and Fig. 2is a front view of the box with the face-plate C, Fig. 1, removed.

The axle A is surrounded by a series of rollers, G and H, of anyconvenient size, H representing those rollers which have passed fromunder the load. The rollers may be somewhat chamfered or rounded off attheir ends to prevent any sharp angles. The number of rollers should besuch as to completely surround the axle A, with as little unoccupiedspace as possible for practical use, although considerable latitude isadmissible in this respect, if other necessary conditions are compliedwith. The interior of the axle-box B is cylindrical, and of an internaldiameter very slightly greater than the united diameter of the journaland surrounding rollers. The axle A has preferably no end collar, anyexcess of endplay being taken up by an end plate, D. The axle-box B hasguides or channel-bars I I attached to or otherwise connected with it,along that part of the interior which is opposite to (No model.)

the loaded side of the axle at such a horizontal distance apart as tobarely. leave free passage for the rollers H when passing around underthe journal A. These guides I I are flared out at their upperextremities from a to I), being beveled, flared, or sloping faces, forapurpose to be described, and leaving a space at the upper part of theinterior of the axlebox truly cylindrical fora considerably greaterdistance than the length of the rollers. \Vhen the axle A is in motion,the loaded rollers G G G move with it and push the loose rollers H Haround with them through and between the faces of the guidebars I I. Ifthe loaded rollers G G should be displaced in any way from their normalpath while sustaining the load, they are free to roll in any directionuntil they have passed from under tl1eload,when the beveled or flaredextremities a I) of the guides I I bring them into their proper position transversely, while the pressure of the rollers against each otherbrings them evenly together into the proper position to take the loadagain in their turn. \Vhen the axle is in motion, theloose rollers H H Hremain closely in contact with each other, and all the play allowed isdistributed with approximate uniformity between the bearing-rollers G GG. It is essential for the most perfect action that the end'play of therollers G G G should be considerably more than that of the axle; thatthe rollers should be as large as possible; that they should completelyfill the annular ring as nearly as their ready insertion permits; thatthe guide-faces I I should reach at least as high as to the center ofthe rollers, and should be, foralittledistance, at least, parallel witheach other, to insure that the rollers shall not get out of parallelwith the axle, and, finally, that the rolling surfaces should all be ofhard and durable material, according to the load on the axle, and trulycylindrical. The surfaces then become cold-rolled by pressure, and loselittle by attrition. Considerable latitude is possible in any one ofthese conditions; but any radical departure from any one of them isliable to prevent the best results.

The journal-box, as a whole, may be of any material and mechanicalconstruction.

I have described what I regard as the best mode of applying myinvention; but there are undoubtedly other ways of applying it. I do nottherefore wish to limit myself to the particular method hereindescribed.

My invention consists, broadly, in the use,

straight guide-faces with beveled or sloping ends with loose rollers,substantially in the manner described.

3. In journal-bearings, the combination of an axle, end stop or boss,beveled, flaring, or 20 sloping gnides,and loose rollers, substantiallyas described, and for the purpose herein set forth.

In testimony whereof I affix my signature in presence of two witnesses.

ARTHUR M. VELLINGTON.

\Vitnesses:

WV. H. BOARDMAN, XV. H. HITCHOOCK.

